QUESTIONS 



73 



11 to 19% inches apart for a series of years. In seasonable years the 

 best yields were secured with the thickest planting, and in dry years 

 with the thinnest planting. 



Effect of Season on Yield and Percentage of Grain 



QUESTIONS 



1. How important is preparation of land? 



2. Why does deep or shallow plowing not show consistent results? 



3. Explain different systems for preparing corn land. 



4. What are the reasons for believing deep plowing to be good practice? 



5. Compare early vs. late spring plowing. 



6. Can land ever be pulverized too fine? 



7. When is hand planting practical? 



8. Where is drilling general and good practice? Where check-row 



planting ? 



9. Does the method of drill or hill planting affect yield? 



10. When does corn planting begin in the South? North? 



11. How deep should corn be planted? 



12. Explain the principles involved in rate of planting as affected by size 



of plant; fertility of soil; good and poor seasons. 



